LEGO 42152 Technic Firefighter Aircraft: Accept the building challenge of this firefighter aircraft set! See how real-life fire-fighting planes work. The propellors spin, the landing gear raises and lowers, the tail flaps move, and more! Open the hatch to drop the LEGO water elements! Give kids aged 10 and up a cool building challenge with this LEGO 42152 Technic Firefighter Aircraft model airplane toy set, a great project for children and adults to enjoy together. It's packed with features inspired by real-life fire-fighting planes so kids can see how all the functions work together during firefighting operations. There's lots to discover as kids make the propellors spin, raise and lower the landing gear, and see the tail flaps move. You'll love opening the hatch to drop the LEGO water elements to learn how firefighter aircraft put out fires. 1,134 pieces. Download the LEGO Builder app and step into a new world of building fun where you can zoom in and rotate models in 3D, save sets, and track your progress. LEGO Technic buildable models feature realistic movement and mechanisms that introduce young builders to the universe of engineering in an approachable and realistic way.